The diamond ring that Riveria showed off at the Latina Magazine "Hollywood Hot List" event at The Redbury in Hollywood "looks like a princess cut diamond surrounded with a halo setting, which is something that's been trending for the last three to four years. Natalie Portman was one of the first stars to wear this style," according to jewellery expert Michael O'Connor who was tapped by E!News.

He also said "I would estimate it's 3.5 carats to four, but closer to four carats with a platinum setting. The diamond looks to be in very good quality, of course, so her ring probably retailed at around $70,000."

Big Sean certainly to spare any expense and admitted to GQ magazine that he's "Gleekin' heavy" adding "How could you not, man, if that was your girlfriend, you'd probably be Gleekin' too."

Naya Riveria attending Latina magazine's 'Hollywood Hot List' party

Riveria and Big Sean have been dating for 6 months after meeting on twitter